Found in the December 1974 issue of Radio Electronics, this circuit is similar to the previous one, only using another TTL counter. The circuit must be powered by 5 V.
This circuit was originally designed for testing crystals used in color televisions, but it works...
This circuit was found in the February 1995 issue of Electronics Now magazine. It can double the...
The figure shows how to use an LM3914 with a variable range moving point. The circuit has an...